ThemePickerLeaf: Import removed customization code from android-14.0.0_r27

* https://android.googlesource.com/platform/packages/apps/ThemePicker/+/f434693af971ad88669f9a63d7ced3ba92b651c3
* https://android.googlesource.com/platform/packages/apps/ThemePicker/+/8c4b2e31310e647ee10da14d7887828b9d17de1f

Change-Id: I7d224fab35bfda3c7c04ed68db7c7e06dbfe0020
48 files changed